Builder mechanism for spinning frames



Feb. 7, 1939.

W.'J. JACQUES BUILDER MECHANISM FOR S PINNING FRAMES Filed Feb. 24, 19375 Sheets-Sheet 1 I N VEN TOR.

Feb. 7, 1939 w; J. JACQUES Q 2,145,435

BUILDER MECHANISM FOR SPINNING FRAMES Filed Feb. 24,1937 3 Sheets-Sheet'2 ATTORNEY.

M. W1 I w. J; JACQUES 2,146,435 BUILDER MECHANISM FOR SPINNINGFRAMESFiled Feb. 24, 1937 3 Sheets-Sheet 5 W A. 1 W m M Y I- W m w d QNM 5* Qpaw Q R Q w wk wk am. A R NQ RN w m QR NA x Feb. .7 1939.

- INVENTOR. Wald?! Mczaea BY ATTORNEY.

Patented Feb. 7, 1939 BUILDER MECHANISM FOR srmnmd FRAMES w Walter J.Jacques, Blackstone, Mass, assig'nor to Whitin Machine Works,Whitinsville, Mass, a corporation of Massachusetts 1 ApplicationFebruary 24, 1937; serial No. 127,499

5 Claims. (C1. 24243.3)

This invention relates to the builder mechanism of a spinning ortwisting frame; and relates more particularly to mechanism for winding apreliminary bunch of yarn or thread on the barrel of a 5 weft bobbin insuch a machine.

Such preliminary bunches of yarn are useful on weft bobbins which areused in automatic looms,

where the replacementof substantially exhausted bobbins is controlled bythe coaction of a detect- 1 ing element or feeler with the weft on thebobbin.

The provision of a substantial initial bunch of weft yarn on the barrelof the bobbin causes an abrupt change in diameter to take place when thehunch is wound off, and at which time an indiig cation of transfer isdesired. By reason of this marked change in, diameter, the indicationfor a bobbin change is much more reliably given.

It is the general object of my invention to provide improved andsimplified mechanism by which 20 a bunch of predetermined size may bewound on a bobbin and by which a shift to the regular wind will thenautomatically take place.

A further object of my invention is to provide convenient and effectivemeans by which the size 25 of the bunch may be varied as desired.

My invention further relates to arrangements and combinations of partswhich will be herein.- after described and more particularly pointed outin the appended claims. a

1 3o A preferred form of the invention is shown in the drawings, inwhich Fig. 1 is a partial side elevation of a spinning frame embodyingmy improvements;

Fig. 2 is a sectional end elevation, taken substantially along the line2-2 in Fig. 1;

Fig. 3 is a partial sectional side elevation, taken substantially alongthe line 3-3 in Fig. 2;

Fig. 4 is a detail elevation, looking in the direction of the arrow 4 inFig. 3 and Fig. 5 is a view of a bobbin with a bunch wound thereon.

Referring to the drawings, I have shown portions of a spinning frameincluding an end frame member ID (Fig. 1), a fixed ring rail II and a 5plurality of spindles 12 mounted on a vertically movable spindle raill4.

The spindle rails 14 at the opposite sides of the spinning frame areslidable on vertical guide rods 16 and are secured to cross members orsupports l8 (Fig. 2) connected by hooks l9 and belts 20 to pulleys 2|and 22, the belts being secured to the peripheries of the pulleys andbeing adapted to be wound thereon. The pulleys are rotatable about fixedaxes. 55 A chain 24 has one end thereof secured by a screw 25 to thepulley 2| and the chain is wrapped partiallyaround the pulley. From thetop of the pulley 2| the chain 24 extends crosswise of the machine andunder and around the pulley 22, ,asindicated in Fig. 2. The end of the 5chain 24 is then brought downward over and arounda third pulley. 25, towhich it is secured at 26. The chain 24 may also be secured to thepulley 22 by a screw 21.

A second chain 30-has itsupper end passed around a. slightly largerportion of the pulley 25 and is secured thereto by a screw 32. At itslower end-the chain 30 passes partially around a pulley 33, to which itis secured by a screw 34. The

pulley 33 is mounted on a stud or cross shaft 35 in a builder lever351which swings about a fixed pivot 31 supported by the frame 10. Thepulley 33.15 provided with a worm wheel 38 engaged by a worm' 39rotatably mounted on a shaft til in thebuilder lever33, which shaft hasa pick wheel 4fllat itsouter end.

A pick lever 41. (Fig. l) is loosely mounted to swing about the axis ofthe worm wheel shaft 39 andpickwheel 4i], and the lever 4| is providedwith a pawl 42 engaging the ratchet wheel 43.

As the builder lever moves upward, the lever 41 and pawl 42 swingdownward on their idle return stroke, and as the builder leverthereafter moves ,downwardfthe lever 4| is engaged by a stop pin andaccordingly swings in a clockwise direction to advance the ratchet wheel40 and worm wheel 39 and thus gradually lower the cross members l8,spindle rails I4 and spindles l2 relatively tofthe fixed ringrails ll.

For a morecomplete description of this mechanism for graduallyloweringthe spindle rails, reference is made to the prior patent to Kooistra No.1,926,390, issuedSeptember 12, 1936.

My present invention relates toimproved devices for varying andcontrolling the traverse or swing of the builder lever 36, thus causinga bunch to be wound on the bobbins B supported by the spindles 12. Theapproximate size and desired location of the bunch is indicated at A inFig-5, with the. dotted lines a indicating the size and shape of thefully wound bobbin.

A regular builder cam 44 (Fig. 3) is keyed to a camshaft 45 rotatable'ina bearing 45 on the end frame member ill, and said cam engages anelongatedcam roll 41 rotatably mounted in the 5 upper part of thebuilder lever 36.

The cam shaft'45 may be provided with a gear .48 (Fig. 1) forming partof a driving gear train of the type common in spinning and twist- .ingmachines, and through which gear train the shaft 45 and cam 44 arecontinuously rotated at a uniform speed.

A second or auxiliary cam (Fig. 3) is loose on the cam shaft 45 but isheld from axial movement thereon by a locking ring 5|. A series ofclutch teeth 52 are formed on the end of the hub 53 of the cam 50, and asimilar series of clutch teeth 54 are formed on the adjacent end of aclutch collar 55 which is keyed to the cam shaft 45 but is free to slideon said shaft, except as outward sliding movement is limited by a collar56. r

The clutch collar 55 is grooved to receive pins in the forked lower endsof a yoke arm mounted on a rock shaft 6| (Fig. 2). supp rted inabearingbracket 62. rock shaft 6| and extends horizontally therefrom. A handle66 (Fig. 1) is also secured to the rock shaft 6| and constitutes meansby which the clutch, teeth 52 and 54 may be engaged. A spring 61normally draws the arm 63 downward and tends to separate theclutchteeth.

Alatch lO (Figs. 2' and 4) is; pivoted at II on the bracket 62' and hasa hook-shaped lower end adapted to underlie and support the arm 63. andto hold the clutch teeth in engagement. A cord or chain 14 (Fig. 2)extends down through a hole 15 (Fig. 3) in an upward extension 16 of thelatch H1 and, also extends around a guide pulley 11 mounted on thebracket 62. The lower end of the cord 14 extends through a hole 18 inthe web of, the cam 50, near the hub 53, and may be secured to theopposite face of the web as by a screw 79. V

The upper end, of the cord T4- extends around a second guide pulley 80andis. provided with a weight W. A sleeve or bushing 8| may be, securedto the cord. 14 at any desired point by a clamping screw 82. 7

Having described the details of construction of my improved bunchbuilding mechanism, I will now describe the operation thereof.

When the time comes for dotting, the operator will stop the frame, withthe builder lever 36 substantially in its lowest position, with the camroll, 41 engaging the regular cam, 44 substantially at its toe or pointof greatest radius, as indicated in Fig. 2. The operator will then. windup the spindle rails by applying a wrench to the worm shaft 39 (Fig. 2)and rotating the pulley 33 in an anti-clockwise direction. The operatorthen swings the lever 66 (Fig. 1). to; the left, thus moving the clutchcollar 55. to the right and causing the clutch teeth to become engaged.At the same time, the arm 63 is. swung upward and is caught by the latch10, as indicated in Fig. 4.

When the machine is then placed in operation, the cams 44 and 50 willrotate together and substantially in the relation shown in Fig, 2. Asthe cam roll 41 underlies both cams, the lever will be positioned bywhichever camis of greatest radius at a given point, and consequentlythere will be two shorttrayerses ofthe builder lever 36, and spindlerail I4 for each revolution of. the cam shaft, instead, ofthe usualsingle, long traverse, and this operation Will continue. as long as thearm 63 is held upward by the latch 10.

Rotation of the cam 56,, however, causes the cord 14 to be wound aroundvthe hub 53 of the cam 50, thus drawing thesleeve. or bushing 8|progressively toward the upward extension 16 of the latch 10.

When, the bushing engages the part, 16, the latch, is withdrawn,thelever 63, is released and the clutch collar 55 moved to the leftreleasing An arm 63 (Fig. 3) is secured to the the cam 50. The bushingshould be so located on the cord or chain .14 that the latch will bewithdrawn when the cam 44 is engaged by the cam roll 41. The weight Wthen returns the cam 50 to the initial position indicated in Figure 3,with its shortest radius or heel at the bottom, in which position. itwill not be at any time engaged by the cam roll 41 during the regularwind, as the heel of the regular cam is of greater radius than the heelof the auxiliary cam. The winding of the bobbin thereafter proceedsunder the control of the regular cam 44 in the usual way.

By adjusting the position of the sleeve 8| on the cord 14, the size ofthe bunch A on the bobbin B may be increased or decreased as desired.

It will thus appear that I have provided an extremely simple mechanismfor winding a bunch of any desired size on a weft bobbin, and forautomatically restoring regular traverse when the desired bunch isattained.

While I have described my invention as applied to a spinning framehaving a movable spindle rail, it will be understood that the inventionis equally adaptable to spinning frames having a movable ring rail, andto spinning frames having both a movable spindle rail and a movable ringrail.

Having thus described my invention and the advantages thereof, I do notwish to be limited tothe details herein disclosed, otherwise than as setforth in the claims, but what I claim is:

1. In a builder motion, a builder lever and roll, a regular builder camfixed to a continuously rotated shaft, an auxiliary cam normally looseon said shaft, means to connect said auxiliary cam to rotate with saidregular cam to wind a bunch, means to disconnect said auxiliary cam, andseparate means additional to said shaft effective to rotate saidauxiliary cam to a predetermined' initial angular position when releasedand to hold said cam in said position and out of contact with saidbuilder lever and roll.

2. In a builder motion, a regular builder cam fixed to a continuouslyrotated shaft, an auxiliary cam normally loose on said shaft butrotatable in a fixed plane, a builder lever and roll coacting with saidcams, means to connect said auxiliary cam to rotate with said regularcam to wind a bunch, means to disconnect said auxiliary cam, andseparate means additional to said shaft effective to return saidauxili'ary cam to a predetermined initial angular position whenreleased, in which position the toe of said auxiliary cam is remote fromsaid lever and roll, and to hold said cam in said position.

3. In a builder motion, a regular builder cam, means to continuouslyrotate said cam, a normally stationary auxiliary cam, both of said camsrotating in fixed planes, manual means to connect said auxiliary cam torotate with said regular cam to wind a bunch, a builder lever having aportion normally engaged by said regular cam but alternately engageableby both cams when said cams are rotated together, and automatic means todisconnect and stop said auxiliary cam when a bunch of predeterminedsize has been wound, and said latter means comprising a member manually'adjustable to determine the size of the bunch.

4. In a builder motion, a regular builder cam fixed to a continuouslyrotated shaft, an auxiliary cam normally loose on said shaft, means toconnect said auxiliary cam to rotate with said regular cam to wind. abunch, a flexible, member connected to said auxiliary cam andwindconnected to said auxiliary cam and windable on the hub of saidauxiliary cam when said cam is rotated, an abutment on said flexiblememher, a release device for said auxiliary cam engageable by saidabutment, and a weight on said flexible member efiective to return saidmember and auxiliary cam to initial position when released by saiddevice.

WALTER J. JACQUES.

